Flora of North America species comparison

arising at slightly different heights, not forming just 1 rosette, blue-green, glaucous, often 2–3-ternate-3-pinnately dissected;

petiole broadly sheathing basally to 1/2 length;

blade triangular to ovate, 5–12 × 2.7–10 cm, surfaces glabrous;

penultimate segments narrow, usually less than 2 mm wide, ultimate segments 1000–5000, linear, 1–5 × 0.5 mm, not overlapping, margins entire, apex acute, callus tips 0–0.2 mm, firm but not spinelike, terminal segment 1–5 mm;

cauline leaves 0–2, petioles sometimes sheathing more than 1/2 length.

arising at slightly different heights, not forming just 1 rosette, green, ternate-2-pinnate-pinnately dissected, sometimes quinate-2-pinnate-pinnately dissected;

petiole sheathing 33–100% of length;

blade rhombic, (6.5–)10–17(–22) × (3–)5–15 cm, surfaces glabrous or puberulent, rarely hirsute; ultimate segments 100–200, linear-elliptic to oblanceolate; (3–)7–12(–16) times as long as wide, (6–)10–30(–79) × (0.8–)1–3(–6.3) mm, relatively narrow, crowded, confluent at base with adjacent lobe, petiolule absent, margins entire, usually not reflexed, apex obtuse, callus tips 0.1–0.2 mm, terminal segment (5–)10–25(–39) mm;

cauline leaves (0–)1, if present, with more than 5 ultimate segments.

absent or subterranean.

absent.

1–6 per plant, usually 1 per stem, decumbent, spreading, or ascending, strongly inflated at maturity, 5–15(–24) cm, exceeding leaves, 2–8(–11) mm wide 1 cm below umbel, glabrous.

1–3(–10) per plant, 1(–2) per stem, erect, green to anthocyanic at base, not inflated, (6–)8–26(–37) cm, exceeding leaves, 1.8–3 mm wide 1 cm below umbel, sparsely puberulent or hirsute, sometimes glabrous.

2.5–4.7 cm wide in flower, 3.6–8.6 cm wide in fruit, rays 6–16, spreading, 1–4(–6) cm in fruit, subequal to unequal, glabrous;

involucel bractlets several, distinct, linear-subulate, (3–)4–9(–15) mm, shorter or longer than flowers, margins very broadly scarious, not ciliate, entire, glabrous;

umbellets 8–15-flowered.

2.5–11.5 cm wide in flower, 6–16 cm wide in fruit, rays 3–12, mostly ascending, often some erect, spreading, or a few reflexed, (2.5–)3–9(–13) cm in fruit, unequal, glabrous or puberulent;

involucel bractlets usually 3+, distinct, lanceolate to linear, 2–6.2 mm, shorter than or subequal to flowers, margins narrowly or not scarious, not ciliate, entire, glabrous or rarely sparsely puberulent/hirsute.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow, glabrous;

anthers yellow;

ovary and young fruit glabrous or sparsely puberulent, rarely densely puberulent.

(5.5–)6.5–8(–9) mm, shorter than fruit.

2.1–6.2(–8) mm, shorter than fruit, spreading to erect when fruit is mature.

± dorsiventrally compressed, narrowly elliptic or oblong-oval, 8.8–16(–19.3) × (3–)4.7–7.8 mm, length/width ratio 1.9–3.3;

wings 0.9–2 mm wide, 25–50% of body width, ± same color as body;

abaxial ribs slightly raised;

apex obtuse;

oil ducts usually 1 in intervals, 3–4 on commissure, conspicuous.

dorsiventrally compressed, elliptic, (8.5–)9.8–13(–15.5) × (3.5–)4.5–5.5(–6.3) mm, length/width ratio (1.8–)2–3(–3.3);

wings 1–2.2 mm wide, 50–80% of body width, paler than body;

abaxial ribs raised, narrow;

apex obtuse;

oil ducts 3–4 in intervals, 2 on commissure, obscure.